Is it possible to be pregnant while on cycle then took a urine test was negative is better have blood work done?

Yes, it is possible to be pregnant while on your cycle and still receive a negative result from a urine pregnancy test. Urine pregnancy tests detect the presence of human chorionic gonadotropin (hCG) in the urine, a hormone produced by the placenta during pregnancy. However, in early pregnancy, the levels of hCG may be low and not easily detectable by a urine pregnancy test. For this reason, blood work may be a more sensitive and accurate way to determine pregnancy, as it can detect hCG levels even when they are low. If you suspect that you may be pregnant despite a negative urine pregnancy test, it is recommended that you have blood work done to confirm or rule out pregnancy.